Adaptive application logger

ABSTRACT

Embodiments of the invention provide systems and methods for logging of messages in a development environment. More specifically, embodiments of the present invention provide dynamically adaptive logging of runtime messages generated by an application. These embodiments provide a way to handle the volume of information stored in the logs by dynamically changing the severity associated with generated messages based on previous code path execution. Embodiments can use a set of metrics to replace the usual static log level associated with the code by the developer. For example, such metrics can include but are not limited to a cost-based (storage volume on disk), an exception-based (weight increase in catch block), and/or a crowd-based (community can vote down noise). As a result, embodiments can provide more detailed information when the error is recurring for a particular user but without generating so much information as to make the log difficult to use.

BACKGROUND OF THE INVENTION

Embodiments of the present invention relate generally to methods and systems for logging of messages in a development environment and more particularly to providing dynamically adaptive logging of runtime messages generated by an application.

Logging refers to the generation of messages and the recording of activity based on those messages. A logging framework is commonly used in a development environment by developers of an application under test. In a logging framework, a logger application or object allows the application under development to log messages generated during execution of that application in the development environment. For example, the application can log a message by passing an object or an exception having a particular severity level to the logging framework. The logger of the framework can log a message associated with the object or exception which can then be used by the developers to trace execution of the application in an effort to debug the application. Current logging frameworks, such as the Java logging framework for example, are based on a static log level associated with the specific object or exception. For example, these levels can be defined in terms of severity such as “trace,” “debug,” “info,” “warning,” “error,” and “fatal” to indicate increasing degrees of how serious a message should be considered. These levels are associated with the code by the code developer at design time. The logger framework can be configured by the developer to log those messages generated at or above a particular severity level.

However, the static definition of a log level in such an approach can present some difficulties for the developers. For example, if the severity level is set too high, the developer may not be able to find enough information in the logs to effectively find a root cause of a problem or to otherwise troubleshoot a problem. To correct this, the developer needs to change the setup or configuration of the logging framework to capture the information needed, e.g., to change the severity level of messages logged. This may, in many cases, require the system to be restarted. Then, if the severity level is too low, the logs may be flooded with such a volume of messages that the developer can have a difficult, if not impossible, task of finding a relevant message in the resulting logs. Hence, there is a need for improved methods and systems for logging of messages in a development environment.

BRIEF SUMMARY OF THE INVENTION

Embodiments of the invention provide systems and methods for providing dynamically adaptive logging of runtime messages generated by an application. According to one embodiment, adaptively logging runtime messages related to an application can comprise detecting a predefined condition of the application and determining an execution state of the application at a time the predefined condition is detected. A determination can be made dynamically as to whether to generate a log message associated with the detected predefined condition or to suppress generation of the log message associated with the detected predefined condition based at least in part on the determined execution state at the time the predefined condition is detected.

Dynamically determining whether to generate a log message associated with the detected predefined condition or to suppress generation of the log message associated with the detected predefined condition can comprise determining whether the predefined condition has been previously detected. In response to determining the predefined condition has not been previously detected, generation of the log message associated with the detected predefined condition can be suppressed, the detected predefined condition and the determined execution state of the application at a time the predefined condition is detected can be saved, and the detected predefined condition can be weighted.

In response to determining the predefined condition has been previously detected, a further determination can be made, based on a set of one or more metrics, as to whether to generate a log message associated with the detected predefined condition or to suppress generation of the log message associated with the detected predefined condition. For example, the metrics can comprise one or more cost-based metrics, one or more exception-based metrics, and/or other metrics. In response to determining to suppress generation of the log message associated with the detected predefined condition based on a set of one or more metrics, generation of the log message associated with the detected predefined condition can be suppressed and the weight of the detected predefined condition can be increased. In response to determining to generate the log message associated with the detected predefined condition based on a set of one or more metrics, the weight of the detected predefined condition can be increased and the log message associated with the detected predefined condition can be generated.

A determination can be made as to whether to continue adaptively logging runtime messages associated with the detected predefined condition of the application. In response to determining to not continue adaptively logging runtime messages associated with the detected predefined condition for the application, logging of messages associated with the detected predefined condition and for the determined execution state of the application can be halted.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a block diagram illustrating components of an exemplary distributed system in which various embodiments of the present invention may be implemented.

FIG. 2 is a block diagram illustrating components of a system environment by which services provided by embodiments of the present invention may be offered as cloud services.

FIG. 3 is a block diagram illustrating an exemplary computer system in which embodiments of the present invention may be implemented.

FIG. 4 is a block diagram illustrating, at a high-level, functional components of a system for providing dynamically adaptive logging of runtime messages generated by an application according to one embodiment of the present invention.

FIG. 5 is a flowchart illustrating a process for providing dynamically adaptive logging of runtime messages generated by an application according to one embodiment of the present invention.

DETAILED DESCRIPTION OF THE INVENTION

In the following description, for the purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of various embodiments of the present invention. It will be apparent, however, to one skilled in the art that embodiments of the present invention may be practiced without some of these specific details. In other instances, well-known structures and devices are shown in block diagram form.

The ensuing description provides exemplary embodiments only, and is not intended to limit the scope, applicability, or configuration of the disclosure. Rather, the ensuing description of the exemplary embodiments will provide those skilled in the art with an enabling description for implementing an exemplary embodiment. It should be understood that various changes may be made in the function and arrangement of elements without departing from the spirit and scope of the invention as set forth in the appended claims.

Specific details are given in the following description to provide a thorough understanding of the embodiments. However, it will be understood by one of ordinary skill in the art that the embodiments may be practiced without these specific details. For example, circuits, systems, networks, processes, and other components may be shown as components in block diagram form in order not to obscure the embodiments in unnecessary detail. In other instances, well-known circuits, processes, algorithms, structures, and techniques may be shown without unnecessary detail in order to avoid obscuring the embodiments.

Also, it is noted that individual embodiments may be described as a process which is depicted as a flowchart, a flow diagram, a data flow diagram, a structure diagram, or a block diagram. Although a flowchart may describe the operations as a sequential process, many of the operations can be performed in parallel or concurrently. In addition, the order of the operations may be re-arranged. A process is terminated when its operations are completed, but could have additional steps not included in a figure. A process may correspond to a method, a function, a procedure, a subroutine, a subprogram, etc. When a process corresponds to a function, its termination can correspond to a return of the function to the calling function or the main function.

The term “machine-readable medium” includes, but is not limited to portable or fixed storage devices, optical storage devices, and various other mediums capable of storing, containing or carrying instruction(s) and/or data. A code segment or machine-executable instructions may represent a procedure, a function, a subprogram, a program, a routine, a subroutine, a module, a software package, a class, or any combination of instructions, data structures, or program statements. A code segment may be coupled to another code segment or a hardware circuit by passing and/or receiving information, data, arguments, parameters, or memory contents. Information, arguments, parameters, data, etc. may be passed, forwarded, or transmitted via any suitable means including memory sharing, message passing, token passing, network transmission, etc.

Furthermore, embodiments may be implemented by hardware, software, firmware, middleware, microcode, hardware description languages, or any combination thereof. When implemented in software, firmware, middleware or microcode, the program code or code segments to perform the necessary tasks may be stored in a machine readable medium. A processor(s) may perform the necessary tasks.

Embodiments of the invention provide systems and methods for logging of messages in a development environment. More specifically, embodiments of the present invention provide dynamically adaptive logging of runtime messages generated by an application. These embodiments provide a way to handle the volume of information stored in the logs by dynamically changing the severity associated with generated messages based on previous code path execution. Additionally or alternatively, embodiments can use a set of metrics to replace the usual static log level associated with the code by the developer. For example, such metrics can include but are not limited to a cost-based (storage volume on disk), an exception-based (weight increase in catch block), and/or a crowd-based (community can vote down noise). As a result, embodiments can provide more detailed information when the error is recurring for a particular user but without generating so much information as to make the log difficult to use. Various additional details of embodiments of the present invention will be described below with reference to the figures.

FIG. 1 is a block diagram illustrating components of an exemplary distributed system in which various embodiments of the present invention may be implemented. In the illustrated embodiment, distributed system 100 includes one or more client computing devices 102, 104, 106, and 108, which are configured to execute and operate a client application such as a web browser, proprietary client (e.g., Oracle Forms), or the like over one or more network(s) 110. Server 112 may be communicatively coupled with remote client computing devices 102, 104, 106, and 108 via network 110.

In various embodiments, server 112 may be adapted to run one or more services or software applications provided by one or more of the components of the system. In some embodiments, these services may be offered as web-based or cloud services or under a Software as a Service (SaaS) model to the users of client computing devices 102, 104, 106, and/or 108. Users operating client computing devices 102, 104, 106, and/or 108 may in turn utilize one or more client applications to interact with server 112 to utilize the services provided by these components.

In the configuration depicted in the figure, the software components 118, 120 and 122 of system 100 are shown as being implemented on server 112. In other embodiments, one or more of the components of system 100 and/or the services provided by these components may also be implemented by one or more of the client computing devices 102, 104, 106, and/or 108. Users operating the client computing devices may then utilize one or more client applications to use the services provided by these components. These components may be implemented in hardware, firmware, software, or combinations thereof. It should be appreciated that different system configurations are possible, which may be different from distributed system 100. The embodiment shown in the figure is thus one example of a distributed system for implementing an embodiment system and is not intended to be limiting.

Client computing devices 102, 104, 106, and/or 108 may be portable handheld devices (e.g., an iPhone®, cellular telephone, an iPad®, computing tablet, a personal digital assistant (PDA)) or wearable devices (e.g., a Google Glass® head mounted display), running software such as Microsoft Windows Mobile®, and/or a variety of mobile operating systems such as iOS, Windows Phone, Android, BlackBerry 10, Palm OS, and the like, and being Internet, e-mail, short message service (SMS), Blackberry®, or other communication protocol enabled. The client computing devices can be general purpose personal computers including, by way of example, personal computers and/or laptop computers running various versions of Microsoft Windows®, Apple Macintosh®, and/or Linux operating systems. The client computing devices can be workstation computers running any of a variety of commercially-available UNIX® or UNIX-like operating systems, including without limitation the variety of GNU/Linux operating systems, such as for example, Google Chrome OS. Alternatively, or in addition, client computing devices 102, 104, 106, and 108 may be any other electronic device, such as a thin-client computer, an Internet-enabled gaming system (e.g., a Microsoft Xbox gaming console with or without a Kinect® gesture input device), and/or a personal messaging device, capable of communicating over network(s) 110.

Although exemplary distributed system 100 is shown with four client computing devices, any number of client computing devices may be supported. Other devices, such as devices with sensors, etc., may interact with server 112.

Network(s) 110 in distributed system 100 may be any type of network familiar to those skilled in the art that can support data communications using any of a variety of commercially-available protocols, including without limitation TCP/IP (transmission control protocol/Internet protocol), SNA (systems network architecture), IPX (Internet packet exchange), AppleTalk, and the like. Merely by way of example, network(s) 110 can be a local area network (LAN), such as one based on Ethernet, Token-Ring and/or the like. Network(s) 110 can be a wide-area network and the Internet. It can include a virtual network, including without limitation a virtual private network (VPN), an intranet, an extranet, a public switched telephone network (PSTN), an infra-red network, a wireless network (e.g., a network operating under any of the Institute of Electrical and Electronics (IEEE) 802.11 suite of protocols, Bluetooth®, and/or any other wireless protocol); and/or any combination of these and/or other networks.

Server 112 may be composed of one or more general purpose computers, specialized server computers (including, by way of example, PC (personal computer) servers, UNIX® servers, mid-range servers, mainframe computers, rack-mounted servers, etc.), server farms, server clusters, or any other appropriate arrangement and/or combination. In various embodiments, server 112 may be adapted to run one or more services or software applications described in the foregoing disclosure. For example, server 112 may correspond to a server for performing processing described above according to an embodiment of the present disclosure.

Server 112 may run an operating system including any of those discussed above, as well as any commercially available server operating system. Server 112 may also run any of a variety of additional server applications and/or mid-tier applications, including HTTP (hypertext transport protocol) servers, FTP (file transfer protocol) servers, CGI (common gateway interface) servers, JAVA® servers, database servers, and the like. Exemplary database servers include without limitation those commercially available from Oracle, Microsoft, Sybase, IBM (International Business Machines), and the like.

In some implementations, server 112 may include one or more applications to analyze and consolidate data feeds and/or event updates received from users of client computing devices 102, 104, 106, and 108. As an example, data feeds and/or event updates may include, but are not limited to, Twitter® feeds, Facebook® updates or real-time updates received from one or more third party information sources and continuous data streams, which may include real-time events related to sensor data applications, financial tickers, network performance measuring tools (e.g., network monitoring and traffic management applications), clickstream analysis tools, automobile traffic monitoring, and the like. Server 112 may also include one or more applications to display the data feeds and/or real-time events via one or more display devices of client computing devices 102, 104, 106, and 108.

Distributed system 100 may also include one or more databases 114 and 116. Databases 114 and 116 may reside in a variety of locations. By way of example, one or more of databases 114 and 116 may reside on a non-transitory storage medium local to (and/or resident in) server 112. Alternatively, databases 114 and 116 may be remote from server 112 and in communication with server 112 via a network-based or dedicated connection. In one set of embodiments, databases 114 and 116 may reside in a storage-area network (SAN). Similarly, any necessary files for performing the functions attributed to server 112 may be stored locally on server 112 and/or remotely, as appropriate. In one set of embodiments, databases 114 and 116 may include relational databases, such as databases provided by Oracle, that are adapted to store, update, and retrieve data in response to SQL-formatted commands.

FIG. 2 is a block diagram illustrating components of a system environment by which services provided by embodiments of the present invention may be offered as cloud services. In the illustrated embodiment, system environment 200 includes one or more client computing devices 204, 206, and 208 that may be used by users to interact with a cloud infrastructure system 202 that provides cloud services. The client computing devices may be configured to operate a client application such as a web browser, a proprietary client application (e.g., Oracle Forms), or some other application, which may be used by a user of the client computing device to interact with cloud infrastructure system 202 to use services provided by cloud infrastructure system 202.

It should be appreciated that cloud infrastructure system 202 depicted in the figure may have other components than those depicted. Further, the embodiment shown in the figure is only one example of a cloud infrastructure system that may incorporate an embodiment of the invention. In some other embodiments, cloud infrastructure system 202 may have more or fewer components than shown in the figure, may combine two or more components, or may have a different configuration or arrangement of components.

Client computing devices 204, 206, and 208 may be devices similar to those described above for 102, 104, 106, and 108.

Although exemplary system environment 200 is shown with three client computing devices, any number of client computing devices may be supported. Other devices such as devices with sensors, etc. may interact with cloud infrastructure system 202.

Network(s) 210 may facilitate communications and exchange of data between clients 204, 206, and 208 and cloud infrastructure system 202. Each network may be any type of network familiar to those skilled in the art that can support data communications using any of a variety of commercially-available protocols, including those described above for network(s) 110.

Cloud infrastructure system 202 may comprise one or more computers and/or servers that may include those described above for server 112.

In certain embodiments, services provided by the cloud infrastructure system may include a host of services that are made available to users of the cloud infrastructure system on demand, such as online data storage and backup solutions, Web-based e-mail services, hosted office suites and document collaboration services, database processing, managed technical support services, and the like. Services provided by the cloud infrastructure system can dynamically scale to meet the needs of its users. A specific instantiation of a service provided by cloud infrastructure system is referred to herein as a “service instance.” In general, any service made available to a user via a communication network, such as the Internet, from a cloud service provider's system is referred to as a “cloud service.” Typically, in a public cloud environment, servers and systems that make up the cloud service provider's system are different from the customer's own on-premises servers and systems. For example, a cloud service provider's system may host an application, and a user may, via a communication network such as the Internet, on demand, order and use the application.

In some examples, a service in a computer network cloud infrastructure may include protected computer network access to storage, a hosted database, a hosted web server, a software application, or other service provided by a cloud vendor to a user, or as otherwise known in the art. For example, a service can include password-protected access to remote storage on the cloud through the Internet. As another example, a service can include a web service-based hosted relational database and a script-language middleware engine for private use by a networked developer. As another example, a service can include access to an email software application hosted on a cloud vendor's web site.

In certain embodiments, cloud infrastructure system 202 may include a suite of applications, middleware, and database service offerings that are delivered to a customer in a self-service, subscription-based, elastically scalable, reliable, highly available, and secure manner. An example of such a cloud infrastructure system is the Oracle Public Cloud provided by the present assignee.

In various embodiments, cloud infrastructure system 202 may be adapted to automatically provision, manage and track a customer's subscription to services offered by cloud infrastructure system 202. Cloud infrastructure system 202 may provide the cloud services via different deployment models. For example, services may be provided under a public cloud model in which cloud infrastructure system 202 is owned by an organization selling cloud services (e.g., owned by Oracle) and the services are made available to the general public or different industry enterprises. As another example, services may be provided under a private cloud model in which cloud infrastructure system 202 is operated solely for a single organization and may provide services for one or more entities within the organization. The cloud services may also be provided under a community cloud model in which cloud infrastructure system 202 and the services provided by cloud infrastructure system 202 are shared by several organizations in a related community. The cloud services may also be provided under a hybrid cloud model, which is a combination of two or more different models.

In some embodiments, the services provided by cloud infrastructure system 202 may include one or more services provided under Software as a Service (SaaS) category, Platform as a Service (PaaS) category, Infrastructure as a Service (IaaS) category, or other categories of services including hybrid services. A customer, via a subscription model, may order one or more services provided by cloud infrastructure system 202. Cloud infrastructure system 202 then performs processing to provide the services in the customer's subscription order.

In some embodiments, the services provided by cloud infrastructure system 202 may include, without limitation, application services, platform services and infrastructure services. In some examples, application services may be provided by the cloud infrastructure system via a SaaS platform. The SaaS platform may be configured to provide cloud services that fall under the SaaS category. For example, the SaaS platform may provide capabilities to build and deliver a suite of on-demand applications on an integrated development and deployment platform. The SaaS platform may manage and control the underlying software and infrastructure for providing the SaaS services. By utilizing the services provided by the SaaS platform, customers can utilize applications executing on the cloud infrastructure system. Customers can acquire the application services without the need for customers to purchase separate licenses and support. Any number of different SaaS services may be provided. Examples include, without limitation, services that provide solutions for sales performance management, enterprise integration, and business flexibility for large organizations.

In some embodiments, platform services may be provided by the cloud infrastructure system via a PaaS platform. The PaaS platform may be configured to provide cloud services that fall under the PaaS category. Examples of platform services may include without limitation services that enable organizations (such as Oracle) to consolidate existing applications on a shared, common architecture, as well as the ability to build new applications that leverage the shared services provided by the platform. The PaaS platform may manage and control the underlying software and infrastructure for providing the PaaS services. Customers can acquire the PaaS services provided by the cloud infrastructure system without the need for customers to purchase separate licenses and support. Examples of platform services include, without limitation, Oracle Java Cloud Service (JCS), Oracle Database Cloud Service (DBCS), and others.

By utilizing the services provided by the PaaS platform, customers can employ programming languages and tools supported by the cloud infrastructure system and also control the deployed services. In some embodiments, platform services provided by the cloud infrastructure system may include database cloud services, middleware cloud services (e.g., Oracle Fusion Middleware services), and Java cloud services. In one embodiment, database cloud services may support shared service deployment models that enable organizations to pool database resources and offer customers a Database as a Service in the form of a database cloud. Middleware cloud services may provide a platform for customers to develop and deploy various business applications, and Java cloud services may provide a platform for customers to deploy Java applications, in the cloud infrastructure system.

Various different infrastructure services may be provided by an IaaS platform in the cloud infrastructure system. The infrastructure services facilitate the management and control of the underlying computing resources, such as storage, networks, and other fundamental computing resources for customers utilizing services provided by the SaaS platform and the PaaS platform.

In certain embodiments, cloud infrastructure system 202 may also include infrastructure resources 230 for providing the resources used to provide various services to customers of the cloud infrastructure system. In one embodiment, infrastructure resources 230 may include pre-integrated and optimized combinations of hardware, such as servers, storage, and networking resources to execute the services provided by the PaaS platform and the SaaS platform.

In some embodiments, resources in cloud infrastructure system 202 may be shared by multiple users and dynamically re-allocated per demand. Additionally, resources may be allocated to users in different time zones. For example, cloud infrastructure system 230 may enable a first set of users in a first time zone to utilize resources of the cloud infrastructure system for a specified number of hours and then enable the re-allocation of the same resources to another set of users located in a different time zone, thereby maximizing the utilization of resources.

In certain embodiments, a number of internal shared services 232 may be provided that are shared by different components or modules of cloud infrastructure system 202 and by the services provided by cloud infrastructure system 202. These internal shared services may include, without limitation, a security and identity service, an integration service, an enterprise repository service, an enterprise manager service, a virus scanning and white list service, a high availability, backup and recovery service, service for enabling cloud support, an email service, a notification service, a file transfer service, and the like.

In certain embodiments, cloud infrastructure system 202 may provide comprehensive management of cloud services (e.g., SaaS, PaaS, and IaaS services) in the cloud infrastructure system. In one embodiment, cloud management functionality may include capabilities for provisioning, managing and tracking a customer's subscription received by cloud infrastructure system 202, and the like.

In one embodiment, as depicted in the figure, cloud management functionality may be provided by one or more modules, such as an order management module 220, an order orchestration module 222, an order provisioning module 224, an order management and monitoring module 226, and an identity management module 228. These modules may include or be provided using one or more computers and/or servers, which may be general purpose computers, specialized server computers, server farms, server clusters, or any other appropriate arrangement and/or combination.

In exemplary operation 234, a customer using a client device, such as client device 204, 206 or 208, may interact with cloud infrastructure system 202 by requesting one or more services provided by cloud infrastructure system 202 and placing an order for a subscription for one or more services offered by cloud infrastructure system 202. In certain embodiments, the customer may access a cloud User Interface (UI), cloud UI 212, cloud UI 214 and/or cloud UI 216 and place a subscription order via these UIs. The order information received by cloud infrastructure system 202 in response to the customer placing an order may include information identifying the customer and one or more services offered by the cloud infrastructure system 202 that the customer intends to subscribe to.

After an order has been placed by the customer, the order information is received via the cloud UIs, 212, 214 and/or 216.

At operation 236, the order is stored in order database 218. Order database 218 can be one of several databases operated by cloud infrastructure system 218 and operated in conjunction with other system elements.

At operation 238, the order information is forwarded to an order management module 220. In some instances, order management module 220 may be configured to perform billing and accounting functions related to the order, such as verifying the order, and upon verification, booking the order.

At operation 240, information regarding the order is communicated to an order orchestration module 222. Order orchestration module 222 may utilize the order information to orchestrate the provisioning of services and resources for the order placed by the customer. In some instances, order orchestration module 222 may orchestrate the provisioning of resources to support the subscribed services using the services of order provisioning module 224.

In certain embodiments, order orchestration module 222 enables the management of business processes associated with each order and applies business logic to determine whether an order should proceed to provisioning. At operation 242, upon receiving an order for a new subscription, order orchestration module 222 sends a request to order provisioning module 224 to allocate resources and configure those resources needed to fulfill the subscription order. Order provisioning module 224 enables the allocation of resources for the services ordered by the customer. Order provisioning module 224 provides a level of abstraction between the cloud services provided by cloud infrastructure system 200 and the physical implementation layer that is used to provision the resources for providing the requested services. Order orchestration module 222 may thus be isolated from implementation details, such as whether or not services and resources are actually provisioned on the fly or pre-provisioned and only allocated/assigned upon request.

At operation 244, once the services and resources are provisioned, a notification of the provided service may be sent to customers on client devices 204, 206 and/or 208 by order provisioning module 224 of cloud infrastructure system 202.

At operation 246, the customer's subscription order may be managed and tracked by an order management and monitoring module 226. In some instances, order management and monitoring module 226 may be configured to collect usage statistics for the services in the subscription order, such as the amount of storage used, the amount data transferred, the number of users, and the amount of system up time and system down time.

In certain embodiments, cloud infrastructure system 200 may include an identity management module 228. Identity management module 228 may be configured to provide identity services, such as access management and authorization services in cloud infrastructure system 200. In some embodiments, identity management module 228 may control information about customers who wish to utilize the services provided by cloud infrastructure system 202. Such information can include information that authenticates the identities of such customers and information that describes which actions those customers are authorized to perform relative to various system resources (e.g., files, directories, applications, communication ports, memory segments, etc.) Identity management module 228 may also include the management of descriptive information about each customer and about how and by whom that descriptive information can be accessed and modified.

FIG. 3 is a block diagram illustrating an exemplary computer system in which embodiments of the present invention may be implemented. The system 300 may be used to implement any of the computer systems described above. As shown in the figure, computer system 300 includes a processing unit 304 that communicates with a number of peripheral subsystems via a bus subsystem 302. These peripheral subsystems may include a processing acceleration unit 306, an I/O subsystem 308, a storage subsystem 318 and a communications subsystem 324. Storage subsystem 318 includes tangible computer-readable storage media 322 and a system memory 310.

Bus subsystem 302 provides a mechanism for letting the various components and subsystems of computer system 300 communicate with each other as intended. Although bus subsystem 302 is shown schematically as a single bus, alternative embodiments of the bus subsystem may utilize multiple buses. Bus subsystem 302 may be any of several types of bus structures including a memory bus or memory controller, a peripheral bus, and a local bus using any of a variety of bus architectures. For example, such architectures may include an Industry Standard Architecture (ISA) bus, Micro Channel Architecture (MCA) bus, Enhanced ISA (EISA) bus, Video Electronics Standards Association (VESA) local bus, and Peripheral Component Interconnect (PCI) bus, which can be implemented as a Mezzanine bus manufactured to the IEEE P1386.1 standard.

Processing unit 304, which can be implemented as one or more integrated circuits (e.g., a conventional microprocessor or microcontroller), controls the operation of computer system 300. One or more processors may be included in processing unit 304. These processors may include single core or multicore processors. In certain embodiments, processing unit 304 may be implemented as one or more independent processing units 332 and/or 334 with single or multicore processors included in each processing unit. In other embodiments, processing unit 304 may also be implemented as a quad-core processing unit formed by integrating two dual-core processors into a single chip.

In various embodiments, processing unit 304 can execute a variety of programs in response to program code and can maintain multiple concurrently executing programs or processes. At any given time, some or all of the program code to be executed can be resident in processor(s) 304 and/or in storage subsystem 318. Through suitable programming, processor(s) 304 can provide various functionalities described above. Computer system 300 may additionally include a processing acceleration unit 306, which can include a digital signal processor (DSP), a special-purpose processor, and/or the like.

I/O subsystem 308 may include user interface input devices and user interface output devices. User interface input devices may include a keyboard, pointing devices such as a mouse or trackball, a touchpad or touch screen incorporated into a display, a scroll wheel, a click wheel, a dial, a button, a switch, a keypad, audio input devices with voice command recognition systems, microphones, and other types of input devices. User interface input devices may include, for example, motion sensing and/or gesture recognition devices such as the Microsoft Kinect® motion sensor that enables users to control and interact with an input device, such as the Microsoft Xbox® 360 game controller, through a natural user interface using gestures and spoken commands. User interface input devices may also include eye gesture recognition devices such as the Google Glass® blink detector that detects eye activity (e.g., ‘blinking’ while taking pictures and/or making a menu selection) from users and transforms the eye gestures as input into an input device (e.g., Google Glass®). Additionally, user interface input devices may include voice recognition sensing devices that enable users to interact with voice recognition systems (e.g., Siri® navigator), through voice commands.

User interface input devices may also include, without limitation, three dimensional (3D) mice, joysticks or pointing sticks, gamepads and graphic tablets, and audio/visual devices such as speakers, digital cameras, digital camcorders, portable media players, webcams, image scanners, fingerprint scanners, barcode reader 3D scanners, 3D printers, laser rangefinders, and eye gaze tracking devices. Additionally, user interface input devices may include, for example, medical imaging input devices such as computed tomography, magnetic resonance imaging, position emission tomography, medical ultrasonography devices. User interface input devices may also include, for example, audio input devices such as MIDI keyboards, digital musical instruments and the like.

User interface output devices may include a display subsystem, indicator lights, or non-visual displays such as audio output devices, etc. The display subsystem may be a cathode ray tube (CRT), a flat-panel device, such as that using a liquid crystal display (LCD) or plasma display, a projection device, a touch screen, and the like. In general, use of the term “output device” is intended to include all possible types of devices and mechanisms for outputting information from computer system 300 to a user or other computer. For example, user interface output devices may include, without limitation, a variety of display devices that visually convey text, graphics and audio/video information such as monitors, printers, speakers, headphones, automotive navigation systems, plotters, voice output devices, and modems.

Computer system 300 may comprise a storage subsystem 318 that comprises software elements, shown as being currently located within a system memory 310. System memory 310 may store program instructions that are loadable and executable on processing unit 304, as well as data generated during the execution of these programs.

Depending on the configuration and type of computer system 300, system memory 310 may be volatile (such as random access memory (RAM)) and/or non-volatile (such as read-only memory (ROM), flash memory, etc.) The RAM typically contains data and/or program modules that are immediately accessible to and/or presently being operated and executed by processing unit 304. In some implementations, system memory 310 may include multiple different types of memory, such as static random access memory (SRAM) or dynamic random access memory (DRAM). In some implementations, a basic input/output system (BIOS), containing the basic routines that help to transfer information between elements within computer system 300, such as during start-up, may typically be stored in the ROM. By way of example, and not limitation, system memory 310 also illustrates application programs 312, which may include client applications, Web browsers, mid-tier applications, relational database management systems (RDBMS), etc., program data 314, and an operating system 316. By way of example, operating system 316 may include various versions of Microsoft Windows®, Apple Macintosh®, and/or Linux operating systems, a variety of commercially-available UNIX® or UNIX-like operating systems (including without limitation the variety of GNU/Linux operating systems, the Google Chrome® OS, and the like) and/or mobile operating systems such as iOS, Windows® Phone, Android® OS, BlackBerry® 10 OS, and Palm® OS operating systems.

Storage subsystem 318 may also provide a tangible computer-readable storage medium for storing the basic programming and data constructs that provide the functionality of some embodiments. Software (programs, code modules, instructions) that when executed by a processor provide the functionality described above may be stored in storage subsystem 318. These software modules or instructions may be executed by processing unit 304. Storage subsystem 318 may also provide a repository for storing data used in accordance with the present invention.

Storage subsystem 300 may also include a computer-readable storage media reader 320 that can further be connected to computer-readable storage media 322. Together and, optionally, in combination with system memory 310, computer-readable storage media 322 may comprehensively represent remote, local, fixed, and/or removable storage devices plus storage media for temporarily and/or more permanently containing, storing, transmitting, and retrieving computer-readable information.

Computer-readable storage media 322 containing code, or portions of code, can also include any appropriate media known or used in the art, including storage media and communication media, such as but not limited to, volatile and non-volatile, removable and non-removable media implemented in any method or technology for storage and/or transmission of information. This can include tangible computer-readable storage media such as RAM, ROM, electronically erasable programmable ROM (EEPROM), flash memory or other memory technology, CD-ROM, digital versatile disk (DVD), or other optical storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or other tangible computer readable media. This can also include nontangible computer-readable media, such as data signals, data transmissions, or any other medium which can be used to transmit the desired information and which can be accessed by computing system 300.

By way of example, computer-readable storage media 322 may include a hard disk drive that reads from or writes to non-removable, nonvolatile magnetic media, a magnetic disk drive that reads from or writes to a removable, nonvolatile magnetic disk, and an optical disk drive that reads from or writes to a removable, nonvolatile optical disk such as a CD ROM, DVD, and Blu-Ray® disk, or other optical media. Computer-readable storage media 322 may include, but is not limited to, Zip® drives, flash memory cards, universal serial bus (USB) flash drives, secure digital (SD) cards, DVD disks, digital video tape, and the like. Computer-readable storage media 322 may also include, solid-state drives (SSD) based on non-volatile memory such as flash-memory based SSDs, enterprise flash drives, solid state ROM, and the like, SSDs based on volatile memory such as solid state RAM, dynamic RAM, static RAM, DRAM-based SSDs, magnetoresistive RAM (MRAM) SSDs, and hybrid SSDs that use a combination of DRAM and flash memory based SSDs. The disk drives and their associated computer-readable media may provide non-volatile storage of computer-readable instructions, data structures, program modules, and other data for computer system 300.

Communications subsystem 324 provides an interface to other computer systems and networks. Communications subsystem 324 serves as an interface for receiving data from and transmitting data to other systems from computer system 300. For example, communications subsystem 324 may enable computer system 300 to connect to one or more devices via the Internet. In some embodiments communications subsystem 324 can include radio frequency (RF) transceiver components for accessing wireless voice and/or data networks (e.g., using cellular telephone technology, advanced data network technology, such as 3G, 4G or EDGE (enhanced data rates for global evolution), WiFi (IEEE 802.11 family standards, or other mobile communication technologies, or any combination thereof), global positioning system (GPS) receiver components, and/or other components. In some embodiments communications subsystem 324 can provide wired network connectivity (e.g., Ethernet) in addition to or instead of a wireless interface.

In some embodiments, communications subsystem 324 may also receive input communication in the form of structured and/or unstructured data feeds 326, event streams 328, event updates 330, and the like on behalf of one or more users who may use computer system 300.

By way of example, communications subsystem 324 may be configured to receive data feeds 326 in real-time from users of social networks and/or other communication services such as Twitter® feeds, Facebook® updates, web feeds such as Rich Site Summary (RSS) feeds, and/or real-time updates from one or more third party information sources.

Additionally, communications subsystem 324 may also be configured to receive data in the form of continuous data streams, which may include event streams 328 of real-time events and/or event updates 330, that may be continuous or unbounded in nature with no explicit end. Examples of applications that generate continuous data may include, for example, sensor data applications, financial tickers, network performance measuring tools (e.g. network monitoring and traffic management applications), clickstream analysis tools, automobile traffic monitoring, and the like.

Communications subsystem 324 may also be configured to output the structured and/or unstructured data feeds 326, event streams 328, event updates 330, and the like to one or more databases that may be in communication with one or more streaming data source computers coupled to computer system 300.

Computer system 300 can be one of various types, including a handheld portable device (e.g., an iPhone® cellular phone, an iPad® computing tablet, a PDA), a wearable device (e.g., a Google Glass® head mounted display), a PC, a workstation, a mainframe, a kiosk, a server rack, or any other data processing system.

Due to the ever-changing nature of computers and networks, the description of computer system 300 depicted in the figure is intended only as a specific example. Many other configurations having more or fewer components than the system depicted in the figure are possible. For example, customized hardware might also be used and/or particular elements might be implemented in hardware, firmware, software (including applets), or a combination. Further, connection to other computing devices, such as network input/output devices, may be employed. Based on the disclosure and teachings provided herein, a person of ordinary skill in the art will appreciate other ways and/or methods to implement the various embodiments.

As introduced above, embodiments of the invention provide systems and methods for logging of messages in a development or other environment. More specifically, embodiments of the present invention provide dynamically adaptive logging of runtime messages generated by an application such as an application under test in the development environment. These embodiments provide a way to handle the volume of information stored in the logs by dynamically changing the severity associated with generated messages based on previous code path execution. Additionally or alternatively, embodiments can use a set of metrics to replace the usual static log level associated with the code by the developer. For example, such metrics can include but are not limited to a cost-based (storage volume on disk), an exception-based (weight increase in catch block), and/or a crowd-based (community can vote down noise). As a result, embodiments can provide more detailed information when the error is recurring for a particular user but without generating so much information as to make the log difficult to use. It should be noted that while described herein as being implemented in a development environment, embodiments of the present invention are thought to be equally applicable to other runtime environments and other situations in which an application generates or causes the generation of log messages. These various different implementations are also considered to be within the scope of the present invention.

FIG. 4 is a block diagram illustrating, at a high-level, functional components of a system for providing dynamically adaptive logging of runtime messages generated by an application according to one embodiment of the present invention. As illustrated in this example, the system 400 can include a development or other runtime environment 405 which can be implemented on any of the servers or other computers described above. An application 410 can be executed in this runtime environment 405. For example, if the runtime environment 405 comprises or is part of a development environment or system, the application 410 can comprise an application undergoing testing or debugging. The system 400 can also include a logging framework 415. For example, the logging framework 415 can comprise the Java logging framework or other similar framework for logging messages generated during and based on execution of the application 410. For example, the application 410 can log a message by passing an object or an exception to the logging framework 415 through an Application Program Interface (API) (not shown here) of the logging framework 415. A logger 420 of the framework 415 can record message associated with the object or exception in one or more logs 435.

According to one embodiment, the logger 420 can perform dynamically adaptive logging of the runtime messages generated by or based on execution of the application 410. Generally speaking, the logger 420 can adaptively log runtime messages related to the application 410 in one or more logs 435 by detecting a predefined condition of the application 410, such as an exception, and determining an execution state of the application 410 at a time the predefined condition is detected. For example, determining an execution state of the application 410 can include determining a current execution path within the application 410. According to one embodiment, detecting the condition or exception and determining the execution state of the application 410 can be performed, for example, through the API of the logging framework 415. For example, the logger 420 can receive objects related to or indicating the conditions or exceptions from the application 405 and can provide methods for determining a current state of the application 410. Additionally or alternatively, the application can periodically or upon occurrence of certain conditions or exceptions provide current state and/or execution path information to the logger 420 through the API of the logging framework 415. A dynamic determination can then be made by the logger 420 as to whether to generate a log message associated with the detected predefined condition or to suppress generation of the log message associated with the detected predefined condition based at least in part on the determined execution state at the time the predefined condition is detected.

More specifically, the logger 420 can dynamically determine whether to generate a log message associated with the detected predefined condition of the application 410 or to suppress generation of the log message by determining whether the predefined condition or exception has previously occurred. In response to determining the predefined condition has not previously occurred, the logger 420 can suppress generation of the log message associated with the detected predefined condition but can save a record 425 of the detected predefined condition and the determined execution state of the application at a time the predefined condition is detected. In addition, the logger can weigh the detected predefined condition. Weighting of the condition or exception can comprise, for example, incrementing or increasing a severity level associated with that condition of exception.

In response to determining the predefined condition has been previously detected, the logger 420 can make a determination based on a set of one or more metrics 430 as to whether to generate a log message associated with the detected predefined condition or to suppress generation of the log message. For example, the metrics 430 can comprise one or more cost-based metrics such as used and/or required storage volume for storing the generated message(s). Other cost based metrics might include required processor overhead and/or current processor load, expected time to handle and record a particular log message etc. Making determinations based on these metrics might also consider a current level of the detected exception or weight of the detected condition. In another example, the metrics can additionally or alternatively include one or more exception-based metrics related to the weight of the condition or exception. Such metrics might define a minimum severity level to be recorded etc. In yet another example, the metrics can additionally or alternatively include one or more crowd-based metrics generated based on input from a set of user and in which this community of user can vote up or down particular conditions or exceptions. For example, a group of developers might indicate a particular interest or disinterest in a certain execution state or path and/or certain conditions/exceptions. In such cases, the suppression or generation of the corresponding messages may be based on these factors relative to a severity level of the detected exception or weight of the detected condition It should be understood that other metrics are contemplated and considered to be within the scope of the present invention.

In response to determining to suppress generation of the log message associated with the detected predefined condition based on a set of one or more metrics, the logger 420 can suppress generation of the log message but can increase the weight of the detected predefined condition or exception, e.g., the exception level can be increased but without generating and storing the corresponding message in the logs 435. In response to determining to generate the log message associated with the detected predefined condition based on a set of one or more metrics, the logger 420 can increase the weight of the detected predefined condition and generate the log message associated with the detected predefined condition to be stored or recorded in the logs 435. The logger can then make a determination as to whether to continue adaptively logging runtime messages associated with the detected and logged predefined condition or exception of the application. For example, this determination may be made based on a maximum weight or exception level being reached, based on a preset maximum number of messages being logged, either over all or for this particular condition/exception along this execution path or for this execution state, or based on other factors or conditions. Additionally or alternatively, this determination can be made based on a time-based series of events and/or a phase of the system, e.g., a startup phase or shutdown phase that can be tied to or related to specific patterns in the logs. In response to determining to not continue adaptively logging runtime messages associated with the detected predefined condition for the application, the logger 420 can halt or suspend further logging of messages associated with the detected predefined condition or exception and for the determined execution state of the application 410. In other words, once the weight of the condition or exception has reached a certain point, or a certain number of messages have already been recorded, etc., further logging of presumably repetitive messages can be prevented by no longer logging messages for the same condition/exception occurring on the same state or execution path.

FIG. 5 is a flowchart illustrating a process for providing dynamically adaptive logging of runtime messages generated by an application according to one embodiment of the present invention. As illustrated in this example, adaptively logging runtime messages related to an application can comprise detecting 505 a predefined condition of the application, such as an exception, and determining 510 an execution state of the application at a time the predefined condition is detected. For example, determining 510 an execution state of the application can include determining a current execution path within the application. A dynamic determination can then be made 515-550 as to whether to generate a log message associated with the detected predefined condition or to suppress generation of the log message associated with the detected predefined condition based at least in part on the determined execution state at the time the predefined condition is detected.

More specifically, dynamically determining whether to generate a log message associated with the detected predefined condition or to suppress generation of the log message associated with the detected predefined condition can comprise determining 515 whether the predefined condition has been previously detected. In response to determining 515 the predefined condition has not been previously detected, i.e., this is the first occurrence of the condition or exception, generation of the log message associated with the detected predefined condition can be suppressed but, the detected predefined condition and the determined execution state of the application at a time the predefined condition is detected can be saved 520 and the detected predefined condition can be weighted 530. Weighting 530 of the condition or exception can comprise, for example, incrementing or increasing a severity level associated with that condition of exception.

In response to determining 515 the predefined condition has been previously detected, a determination 525 can be made based on a set of one or more metrics as to whether to generate a log message associated with the detected predefined condition or to suppress generation of the log message associated with the detected predefined condition. For example, the metrics can comprise one or more cost-based metrics such as used and/or required storage volume for storing the generated message(s). In another example, the metrics can additionally or alternatively include one or more exception-based metrics related to the weight of the condition or exception. In yet another example, the metrics can additionally or alternatively include one or more crowd-based metrics generated based on input from a set of user and in which this community of user can vote up or down particular conditions or exceptions.

In response to determining 525 to suppress generation of the log message associated with the detected predefined condition based on a set of one or more metrics, generation of the log message associated with the detected predefined condition can be suppressed but, the weight of the detected predefined condition or exception can be increased 530, e.g., the exception level can be increased. In response to determining 525 to generate the log message associated with the detected predefined condition based on a set of one or more metrics, the weight of the detected predefined condition can be increased 535, e.g., the exception level can be increased, and the log message associated with the detected predefined condition can be generated 540. A determination 545 may then be made as to whether to continue adaptively logging runtime messages associated with the detected 505 and logged 540 predefined condition or exception of the application. For example, this determination 545 may be made based on a maximum weight or exception level being reached, based on a preset maximum number of messages being logged, either over all or for this particular condition/exception along this execution path or for this execution state, or based on other factors or conditions. In response to determining 545 to not continue adaptively logging runtime messages associated with the detected predefined condition for the application, further logging of messages associated with the detected predefined condition or exception and for the determined execution state of the application can be halted 550.

In the foregoing description, for the purposes of illustration, methods were described in a particular order. It should be appreciated that in alternate embodiments, the methods may be performed in a different order than that described. It should also be appreciated that the methods described above may be performed by hardware components or may be embodied in sequences of machine-executable instructions, which may be used to cause a machine, such as a general-purpose or special-purpose processor or logic circuits programmed with the instructions to perform the methods. These machine-executable instructions may be stored on one or more machine readable mediums or memory devices, such as CD-ROMs or other type of optical disks, floppy diskettes, ROMs, RAMs, EPROMs, EEPROMs, magnetic or optical cards, flash memory, or other types of machine-readable mediums or memory devices suitable for storing electronic instructions. Alternatively, the methods may be performed by a combination of hardware and software.

While illustrative and presently preferred embodiments of the invention have been described in detail herein, it is to be understood that the inventive concepts may be otherwise variously embodied and employed, and that the appended claims are intended to be construed to include such variations, except as limited by the prior art. 

What is claimed is:
 1. A method for adaptively logging runtime messages related to an application, the method comprising: detecting a predefined condition of the application; determining an execution state of the application at a time the predefined condition is detected; and dynamically determining whether to generate a log message associated with the detected predefined condition or to suppress generation of the log message associated with the detected predefined condition based at least in part on the determined execution state at the time the predefined condition is detected.
 2. The method of claim 1, wherein dynamically determining whether to generate a log message associated with the detected predefined condition or to suppress generation of the log message associated with the detected predefined condition comprises: determining whether the predefined condition has been previously detected; and in response to determining the predefined condition has not been previously detected, suppressing generation of the log message associated with the detected predefined condition, saving the detected predefined condition and the determined execution state of the application at a time the predefined condition is detected, and weighting the detected predefined condition.
 3. The method of claim 2, wherein dynamically determining whether to generate a log message associated with the detected predefined condition or to suppress generation of the log message associated with the detected predefined condition further comprises, in response to determining the predefined condition has been previously detected: determining based on a set of one or more metrics whether to generate a log message associated with the detected predefined condition or to suppress generation of the log message associated with the detected predefined condition; in response to determining to suppress generation of the log message associated with the detected predefined condition based on a set of one or more metrics, suppressing generation of the log message associated with the detected predefined condition and increasing the weight of the detected predefined condition; and in response to determining to generate the log message associated with the detected predefined condition based on a set of one or more metrics, increasing the weight of the detected predefined condition and generating the log message associated with the detected predefined condition.
 4. The method of claim 3, wherein the metrics comprise one or more cost-based metrics.
 5. The method of claim 3, wherein the metrics comprise one or more exception-based metrics.
 6. The method of claim 3, wherein the metrics comprise one or more crowd-based metrics.
 7. The method of claim 3, further comprising determining whether to continue adaptively logging runtime messages associated with the detected predefined condition of the application.
 8. The method of claim 7, further comprising, in response to determining to not continue adaptively logging runtime messages associated with the detected predefined condition for the application, halting logging of messages associated with the detected predefined condition for the determined execution state of the application.
 9. A system comprising: a processor; and a memory coupled with and readable by the processor and storing therein a set of instructions which, when executed by the processor, causes the processor to adaptively log runtime messages related to an application by: detecting a predefined condition of the application; determining an execution state of the application at a time the predefined condition is detected; and dynamically determining whether to generate a log message associated with the detected predefined condition or to suppress generation of the log message associated with the detected predefined condition based at least in part on the determined execution state at the time the predefined condition is detected.
 10. The system of claim 9, wherein dynamically determining whether to generate a log message associated with the detected predefined condition or to suppress generation of the log message associated with the detected predefined condition comprises: determining whether the predefined condition has been previously detected; and in response to determining the predefined condition has not been previously detected, suppressing generation of the log message associated with the detected predefined condition, saving the detected predefined condition and the determined execution state of the application at a time the predefined condition is detected, and weighting the detected predefined condition.
 11. The system of claim 10, wherein dynamically determining whether to generate a log message associated with the detected predefined condition or to suppress generation of the log message associated with the detected predefined condition further comprises, in response to determining the predefined condition has been previously detected: determining based on a set of one or more metrics whether to generate a log message associated with the detected predefined condition or to suppress generation of the log message associated with the detected predefined condition; in response to determining to suppress generation of the log message associated with the detected predefined condition based on a set of one or more metrics, suppressing generation of the log message associated with the detected predefined condition and increasing the weight of the detected predefined condition; and in response to determining to generate the log message associated with the detected predefined condition based on a set of one or more metrics, increasing the weight of the detected predefined condition and generating the log message associated with the detected predefined condition.
 12. The system of claim 11, wherein the metrics comprise one or more cost-based metrics.
 13. The system of claim 11, wherein the metrics comprise one or more exception-based metrics.
 14. The system of claim 11, wherein the metrics comprise one or more crowd-based metrics.
 15. The system of claim 11, further comprising determining whether to continue adaptively logging runtime messages associated with the detected predefined condition of the application.
 16. The system of claim 15, further comprising, in response to determining to not continue adaptively logging runtime messages associated with the detected predefined condition for the application, halting logging of messages associated with the detected predefined condition for the determined execution state of the application.
 17. A computer-readable memory comprising a set of instructions stored therein which, when executed by a processor, causes the processor to adaptively log runtime messages related to an application by: detecting a predefined condition of the application; determining an execution state of the application at a time the predefined condition is detected; and dynamically determining whether to generate a log message associated with the detected predefined condition or to suppress generation of the log message associated with the detected predefined condition based at least in part on the determined execution state at the time the predefined condition is detected.
 18. The computer-readable memory of claim 17, wherein dynamically determining whether to generate a log message associated with the detected predefined condition or to suppress generation of the log message associated with the detected predefined condition comprises: determining whether the predefined condition has been previously detected; and in response to determining the predefined condition has not been previously detected, suppressing generation of the log message associated with the detected predefined condition, saving the detected predefined condition and the determined execution state of the application at a time the predefined condition is detected, and weighting the detected predefined condition.
 19. The computer-readable memory of claim 18, wherein dynamically determining whether to generate a log message associated with the detected predefined condition or to suppress generation of the log message associated with the detected predefined condition further comprises, in response to determining the predefined condition has been previously detected: determining based on a set of one or more metrics whether to generate a log message associated with the detected predefined condition or to suppress generation of the log message associated with the detected predefined condition; in response to determining to suppress generation of the log message associated with the detected predefined condition based on a set of one or more metrics, suppressing generation of the log message associated with the detected predefined condition and increasing the weight of the detected predefined condition; and in response to determining to generate the log message associated with the detected predefined condition based on a set of one or more metrics, increasing the weight of the detected predefined condition and generating the log message associated with the detected predefined condition.
 20. The computer-readable memory of claim 19, further comprising determining whether to continue adaptively logging runtime messages associated with the detected predefined condition of the application and in response to determining to not continue adaptively logging runtime messages associated with the detected predefined condition for the application, halting logging of messages associated with the detected predefined condition for the determined execution state of the application. 